[afnog] LDP flaps specifically present on ACX Juniper routers (ACX4000 and ACX1100)

[Jide Akintola]

 blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } How stable is the lo0 route from the view of either device? Check the route age? Is it flapping?


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On Friday, April 22, 2016, 11:51 am, joel ahumuza <ahm.joel at gmail.com> wrote:

Hello Jide,

I have ldp enabled on the loopback interface;
config:

joel at hostname> show configuration | display set | match ldp | match lo 
set protocols ldp interface lo0.0


On Fri, Apr 22, 2016 at 1:10 PM, Jide Akintola <jidept at yahoo.com> wrote:

 Do you have LDP enabled on Lo0 interface? Can you share pertinent config?
CheersJide


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On Friday, April 22, 2016, 10:38 am, joel ahumuza <ahm.joel at gmail.com> wrote:

Hi All,
 
 We are experiencing an issue with ACX routers running on 12.3X54-D20.7 where the LDP sessions are continuously flapping, the logs indicate the following;
 
 Apr 21 03:36:31  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: hold time expired
 Apr 21 03:36:34  hostname rpd[2299]: RPD_LDP_NBRDOWN: LDP neighbor x.x.x.x (lo0.0) is down
 Apr 21 03:36:38  hostname rpd[2299]: RPD_LDP_NBRDOWN: LDP neighbor x.x.x.x (lo0.0) is down
 Apr 21 03:36:38  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: all adjacencies down
 Apr 21 03:55:34  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer
 Apr 21 03:55:34  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer
 Apr 21 03:55:35  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer
 Apr 21 03:55:35  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer
 
 Actions taken from our team was;
 - Increase the hold time setting on the ldp enabled interfaces.
 - Increase the time interval on the same ldp enabled interfaces.
 - setting the ldp session protection setting on the ldp enabled loopback interface.
 
 Unfortunately the actions did not yield much since the flaps have been ongoing.
 
 Anyone have any Idea on what the problem / solution might be?

-- 
Blessings,

Joel AhumuzaSkypeID - jl.hmz
+ 256-75-1040411 | + 256-78-2040411

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-- 
Blessings,

Joel AhumuzaSkypeID - jl.hmz
+ 256-75-1040411 | + 256-78-2040411


 

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